John Chan — 15 Patents at Ballard Power Systems

John Chan has been granted 15 US patents while listed as an inventor at Ballard Power Systems. The first was granted in 1989 and the most recent in October 2016. John Chan ranks #307,048 of 4,157,543 US inventors in our database (top 7.4%). Patent records list John Chan in Needham, MA, US.

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
9463988	Electrical purification apparatus having a blocking spacer	Li-Shiang Liang, Joseph D. Gifford, Lawrence J. Salvo	2016-10-11
9463987	Methods of making a cell stack for an electrical purification apparatus	Li-Shiang Liang, Joseph D. Gifford, Lawrence J. Salvo	2016-10-11
9413092	Electrical power line connector	Gary Charles Sibilant, Jy-An Wang, Fei Ren	2016-08-09
9227858	Electrical purification apparatus	Li-Shiang Liang, Joseph D. Gifford, Lawrence J. Salvo	2016-01-05
9146826	Method and apparatus for scaling network simulation	Hammad Ahmad Khan, Li Zou	2015-09-29
9138689	Method of providing a source of potable water	Li-Shiang Liang, Joseph D. Gifford, Lawrence J. Salvo	2015-09-22
8956521	Electrical purification apparatus having a blocking spacer	Li-Shiang Liang, Joseph D. Gifford, Lawrence J. Salvo	2015-02-17
8627560	Methods of making a cell stack for an electrical purification apparatus	Li-Shiang Liang, Joseph D. Gifford, Lawrence J. Salvo	2014-01-14
7159497	Light beam alignment system	Gerhard Weusthof	2007-01-09
6753106	Method and apparatus for distributing water in an array of fuel cell stacks	Clarence Y. Chow, Adrian Corless	2004-06-22	$4,671,000
6322914	Method and apparatus for distributing water in an array of fuel cell stacks	Clarence Y. Chow, Adrian Corless	2001-11-27	$48,789,000
6096448	Method and apparatus for operating an electrochemical fuel cell with periodic fuel starvation at the anode	David P. Wilkinson, Clarence Y. Chow, Derek E. Allan, deceased, by Patricia Joanne Allan, administrator, Erik Paul Johannes +3 more	2000-08-01	$158,879,000
5935726	Method and apparatus for distributing water to an ion-exchange membrane in a fuel cell	Clarence Y. Chow, Adrian Corless	1999-08-10	$20,506,000
5804326	Integrated reactant and coolant fluid flow field layer for an electrochemical fuel cell	Clarence Y. Chow, Boguslaw Wozniczka	1998-09-08	$15,475,000
4816825	Method and apparatus for power level control in area networks	Gordon Reichard, Jr., Semir Sirazi	1989-03-28	$1,572,000

John Chan — 15 Patents

Issued Patents All Time

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